“已经知道了物体的常在性”所处的心理发展阶段是()。A.感觉运动阶段B.前运算阶段C.具体运算阶段D.形式运算阶段E.无思维阶段

“已经知道了物体的常在性”所处的心理发展阶段是()。A.感觉运动阶段B.前运算阶段C.具体运算阶段D.形式运算阶段E.无思维阶段

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以下哪种方法是节约用水的好办法?()A.用公家的水B.在厕所水箱里放一块砖头C.让水龙头滴水不走水表

以下哪种方法是节约用水的好办法?()A.用公家的水B.在厕所水箱里放一块砖头C.让水龙头滴水不走水表

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—Stars have better player, so I ______them to win.A. hope B. prefect C. expect D

—Stars have better player, so I ______them to win.A. hope B. prefect C. expect D

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—Professor, would you slow down a bit, please? I can’t ______ you.A. keep up wit

—Professor, would you slow down a bit, please? I can’t ______ you.A. keep up wit

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—Of all the students in our class, Betty writes______.A. very carefully B. most

—Of all the students in our class, Betty writes______.A. very carefully B. most

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